jiajunwang opened a new issue #1120:
URL: https://github.com/apache/helix/issues/1120


   During the migration test, we find an issue that the WAGED persisted 
assignment state is not cleaned up even when the resources are configured not 
to use the WAGED rebalancer. This causes a potential issue that if the cluster 
is migrated to WAGED and rolled back, then migrated again, the persisted state 
will impact the assignment so the first migration and second migration will 
have very different results.
   
   And the side effect is that the assignment persistent state will never be 
cleaned up, which is a potential waste of resources.
   


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